As we said earlier, Kevin Pietersen thinks Jason Roy has what it takes to be a Test batsman for England (see 13:41 entry). Perhaps this is why. Like Mark Waugh at his elegant best.

Murali Vijay is looking in decent nick for Essex. He's already found the boundary four times to move to 19 not out, with Tom Westley on nine at the other end. All-rounder Ed Barnard is into his second over for Worcestershire after starting with a maiden.

Tom Haines injuredpublished at 13:55 British Summer Time 18 September 2018

13:55 BST 18 September 2018

Sussex v Warwks 144-2

Tom Haines looks to be struggling with an ankle injury here and he walks gingerly off the field after completing an over that cost 14 runs.

Gareth Berg joins the attack and is turned onto the on side by Ballance for one. One more wicket needed for the first bowling point for Hampshire - and five needed after that to be safe in Division One.

Yorkshire look comfortable at the moment though, with the runs coming at nearly five an over since Brook was out.

We asked you whether it's now time for Jamie Porter to be given his chance in a Test match by England.

From Andy Gould: "Based on the fact that England currently use 2 proper pace bowlers, and then allrounders, he either needs to be better than Broad and Anderson, or improve his batting! #bbccricket, external"

From Tim Carlisle: "#bbccricket, external issue for Porter is not whether he is good enough to do well at Test Level but how many other bowlers are also good enough. He won't be picked ahead of Curran, Woakes etc because of their batting so it's really down to Jimmy and Broady. Roland-Jones comes back too..."

Keep them coming!

Ian Bell aims a flashing drive through point. He hasn't quite got hold of it but picks up one off Danny Briggs.

Jonathan Trott defends. Warwickshire remain becalmed since their openers put on 96 in 25.5 overs but remain in good shape here - with a healthy lead at the top of the second division.

Here's the latest at Lord's, Bristol and Grace Road.

Sam Robson has helped Middlesex get off to a solid start at home to Derbyshire. He has 70 not out, while Stevie Eskinazi has 34.

The one wicket to fall was Nick Gubbins, who was lbw to Hardus Viljoen for 30.

Leicestershire have recovered to 111-2 after slipping to 66-2 against visitors Durham. Ateeq Javid is 58 not out and has put on 45 runs to date with Mark Cosgrove.

Northants are firmly in charge at Bristol, where Gloucestershire are reeling on 62-6, with two wickets each for Ben Sanderson and Brett Hutton and one apiece for Ben Cotton and Nathan Buck.

Chris Dent resisted for 78 balls before being caught by Cotton off the bowling of Hutton for 15.

Shot! The White Rose pass 50 with a pull through mid wicket for four by Ballance off Edwards - and the batsman gets four more through the covers.

A full toss is duly dispatched through the covers for four more.

After a couple of early wickets, the pressure is now firmly back on the visitors.

A big appeal for lbw is turned down to end the over.

The ball swung in late. Doing too much?

for Rory Burnspublished at 13:28 British Summer Time 18 September 2018

13:28 BST 18 September 2018

Surrey 133-0 v Somerset

Image source, Rex Features

Three runs off Josh Davey carries Surrey skipper Rory Burns to an 87-ball fifty, his seventh of the summer, to go with four hundreds. Looks like he is determined to keep racking up the runs until he receives a plane ticket marked Sri Lanka from the England selectors.

This has been stoic stuff from Trott and Bell, with just 12 runs for Warwickshire since lunch.

The visitors remain in a strong position overall though and will be desperate not to fritter away their advantage at the top of the table.

Ian Bell has passed a handy landmark on the way to his seven runs here to date...

I think they mean "mid wicket", by the way.

How will Worcestershire respond to being bowled out in one session? They need a special performance in the field, that's for sure.

Nick Browne gets Essex up and running with a boundary off Josh Tongue and India's Murali Vijay, kaing his first Essex appearance at Chelmsford, follows suit with a straight drive in the Pears paceman's next over.

Lovely shot from Adam Lyth, who drives Edwards through the covers for four.

Can he rebuild with Gary Ballance?

Kyle Abbott to continue from the other end and Ballance picks up a couple down to square leg.

Ballance drives through the covers for four!

Four more through the covers! Abbott responds with a no ball.

14 off the over altogether.

Sussex will have a bit of a spring in their step after prizing out both Warwickshire openers just before the break.

Can they strike early this afternoon?

Ollie Robinson to bowl to Jonathan Trott.

Maiden from Kyle Abbott.

Edwards is struggling a bit with his line at times but he beats Lyth with a beauty outside the off stump with his fourth ball.

Two maidens in a row for Hampshire.

"I'm not convinced it's radical enough either to offend or be the magic bullet" - BBC cricket correspondent Jonathan Agnew on Twitter., external

Find out the latest from the trials of 'The Hundred' at Trent Bridge. Coming your way in 2020 - if they can work out what the actual rules are by then!